下面的代码是实现HOG（附柱状图导向梯度）

            描述符和目标检测，通过那伏乃尔达拉尔和比尔Triggs介绍。



            所计算的特征向量是与兼容

            INRIA目标检测与定位工具包

            （http://pascal.inrialpes.fr/soft/olt/）-The following code is to achieve HOG (Histogram guide attached gradient) descr iptor and target detection, through that V is Jorda Lal and Bill Triggs introduction. Feature vectors are calculated compatible with INRIA target detection and localization kit (http://pascal.inrialpes.fr/soft/olt/)